Thermostatic regulating device.



E. W. COMFORT.

THERMOSTATIG REGULATING DEVICE.

APPLIOATION FILED OUT. 10, 1910.

1 ,O40,625, Patented Oct. 8, 1912.

2 SHEETS-SHEET 1.

a. z. Qua/Z E. W. COMFORT.

THERMOSTATIG REGULATING DEVICE.

APPLICATION FILED 00T.10, 1910.

1,040,625,- Patented Oct. 8, 1912.

2 SHEETSSHEET 2.

Il (1C7, 4 3/ 30 f /0 regulating device having a thermostatically movable outlet for a pressure system, and a UNITED STATES PATENT OFFICE.

EDWARD W. COMFORT,

OF CHICAGO, ILLINOIS.

THERMOSTATIC REYGFULATING DEVICE.

Specification of Letters Patent.

Application filed October 10, 1910. Serial No. 586,149.

To all whom it may concern:

Be it known that I, EDWARD \V. COMFORT, of Chica o, in the county of Cook and State of Illino1s, have invented a new and useful Improvement in Thermostatic Regulating -Devices, of which the following is a specifi-cation, reference beinghad to the accompanying drawings, forming part thereof.

This invention has reference to improvejments in thermostatic regulating devices or :instruments adapted to be influenced by the temperature and humidity of the surround-' ing atmosphere to efi'ect regulation of co operating humidifying or moisture supplying mechanism. h

One object of this'inv'ention is to so construct a thermostatic regulatin device having two independent expansible elements adapted to be infiuenced'respectively by the temperature and humidity of the surround .ing atmosphere that a valve may be controlled bythe action of one of said elements relative to the action of the other of said elements;

construct a thermostatic regulating device Anotherobject of .the invention is to so for a pressure controlled mechanism that one thermostatic element forms a passage for the pressure medium while another thermostzttic element operates a. valve for con- .trolling the flow of the pressure medium from said first mentioned element.

Other objects of the invention will appear from the following description.

The invention consists in a thermostatic thermostatically actuated valve for said outlet movable independently of said outlet.

The invention also consists in a regulating device for a pressure system having an outlet comprising a thermostatic wet bulb ele ment, a valve for controlling the flow of pressure medium from said outlet, and a .the'rmostatic dry bulb element for actuating saidvalve.

The invention also consists in such other novel "features of construction and combination of parts as shall hereinafter be more fully described and pointed out in the claims.

. Figure 1,--represen.ts a side elevation of I the improvedtherm'ostatic regulating device connected with a pressure system by or throughv which the moisture 7 supply is controlle Fig. 2, represents an enlarged sec-,

tional view of the restricted passage in said PatentedOct. 8,1912.

pressure system. Fig. 3, represents an enbe mounted at any point at which the' humidity of the air is to be regulated. Mountedon said base 10, is the depending arm 11 carrying the water receptacle 1 having a longitudinal slot 13 at its upper portion and connected at one end with the water reservoir 14', of any suitable construction, which supplies water to said receptacle 12. Mounted at one end of the base 10, is the bracket 15 having the channel 16, Fig.

5, with which the tube 17 connects, and com-' municating with one surface of said. bracket 15 at a point embraced by the collar lS. Secured in this collar 18 1s the wet bulb thermostatic element 19 tubularin shape and formed of hard rubber, gutta-percha, or other suitable material adapted to readily expand and contract under variations of temperature in the surrounding atmsophere.

This element 19 is furnished with the re:

stricted outlet 20 which, in the present structure, is shown as forming part of the cap 21 which is mounted on the end of the ole inent 19.

At the upper end portion of the base 10 is mounted the bracket 22 in the ring 23 of which is pivotally mounted the cap 24 which supports the corresponding end of the dry bulb thermostatic element 25 formed of material similar to that of the element 19 and having, at its other end, the cap 26 having an axially positioned screw threaded spindle '27 of the thumb nut 28 which has the spur 29. Y

Adjacent to the ends of the elements 19 and 25 having respectively the outlet 20 and the thumb nut or set screw 28, is the bracket 30 which is securedno the base 10 and is furnished with bearings toa'otatably support the shaft 31 having'the valve arm 32,

cooperating with the outlet 21, and the curved arm 33 having depressions at one side adapted to receive the spur 29 of the set screw 28 toward which spur sa-id arm 33 is drawn by the action of the spring 34 secured to said arm 33 and to a fixed part of the mechanism.

Partially embracing the thermostatic element 19 is the wick 35 of absorbent material which extends into the water receptacle 12 and supplies moisture to subject said element 19 to the wet bulb temperature of the atmosphere surrounding such element 19. Communicating with the tube 17 is the pipe 36, connecting with any suitable pressure system which, preferably, includes the valve chamber 37 and with the pressure tank 39 in which latter aco-nstant pressure is maintained by the compressor-40, of any suitable construction, connected with said tank by the pipe 41. The passage of the pressure medium through the bore 37 of the valve chamber is preferably restricted by the pin 42 extending into said bore and'having the flat side 43, Figs. 2 and 3. Connected with the pipe 36 at a point intermediate the valve chamber 37 and the tube 17 "is the pipe 44 through which pressure medium is supplied to the diaphragm valve 45, of any suitable construction, which controls the supply of humidity, supplied through the pipe 46, to any humidity delivering apparatus which is not shown herein as it forms no part of the present invention.

If, in the operation of this device, the outlet 20 or orifice of the wet bulb thermostatic element 19, is closed by the valve '32 the i pressure in the pipe 44 will be sufficient to move or hold the diaphragm of valve 45 in one direction, while, if said outlet is opened, by the movement of the valve 32 away from said outlet or orifice 20 or by the contraction of the wet bulb element 19, the pressure me d-ium will be free to escape from said outlet faster than said pressure medium can pass through the restricted bore 37 of the valve chamber 37 and the pressure in the pipe 44 .to the presence of the moisture supplied in the vicinity of said element 19 by the wick 35. Such moisture evaporates in proportion tothe relative lack of moisture inthe atmosphere and, in ratio to such. evaporation and as a result of the consequent reduction of temperature of the element 19, said element contracts and in case such contraction exceeds the normal amount withdraws the outlet or orifice 20 from the valve 32 thus permitting the escape of the pressure me dium from said outlet or orifice. If, under abnormal conditions of humidity of the atmospher'e, the relative temperature affecting the dry bulb element 25 becomes excessive,

said element 25 will expand and, acting by swinging the free'endof this element 25 toward or away from the pivot of arm 33. The spindle 27 is screwed in or out to accommodate its'spur 29 to such adjustment so thatsaid spur may engage one of the notches or depressions of arm 33.

In order to more conveniently and compactly illustrate the thermostatic regulating device, I have shown both thermostatic elements secured to one base in approximately close relation, but I do not wish to limit this invention thereby.

It is not my intention to limit myself to the mounting of the pressure escape outlet or orifice on the end of one of the thermostatic elements as I understand that said outlet or orifice may be thermostatically operated with relation to a closure in other ways than that shown and described.

Having thus described my invention, I claim as new and desire to secure by Letters Patent.

1. A regulating device of the nature de scribed comprising a thermostatic element, a closure operated thereby in one direction by the expansion of said element, a pressure escape outlet member cooperating with said closure, and a second thermostatic element in operative relation to said outlet member to positively move said member in two directions respectively under expansion and contraction.

2. A regulating device of the nature described comprising a tubular wet bulb thermostatic element having an outlet member, a dry bulb thermostatic element, and a closure for said outlet member pivotally mounted and operated in one direction solely by said dry bulb element.

' 3. A regulating device of the nature described comprising a tubular thermostatic element supported at one end and having an outlet, a closure pivotally mounted and cooperating with said outlet, and a second thermostatic element in operative relation to said closure.

4. A regulating device of the nature described comprising a tubular thermostatic member fixed against movement and having an outlet member, a closure for said outlet pivotally mounted and furnished with a lever arm, and a second thermostatic member cooperating with said arm to move said closure.

5. A regulating device of the nature described comprising a tubular thermostatic element having an outlet, a closure for said outlet pivotally mounted, an arm for operating said closure, and a second thermostatic member having an adjustable screw in engagement with said arm.

6. A regulating device of the nature described comprising two thermostatic ele ments adapted to be separately influenced by the dry and wet bulb temperatures of the air, one of said elements being pivotally mounted, cooperatin pressure controlling devices of which one 1s actuated by said pivoted element and has a lever with relation to which said pivoted member may be adjusted to vary the degree of movement of said closure under the expansion of said element, substantially as described.-

EDWARD W. COMFORT.

Witnesses N. J. MILLER, E. E. AUERBACH. 

